TIME BUILDING LLC· ICAO24 adc540· last seen 19h ago

N987BB is a Van's Aircraft RV-4, a single-engine piston aircraft operated by TIME BUILDING LLC. SkyMeter has tracked 644 flights totalling 374 hours of airtime via ADS-B. The most frequent segment is KEUG to KUAO. Service window in our records spans 448 days. Of those flights, 102 (15.8%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Van's Aircraft RV-4 has a maximum takeoff weight of 1,500 lb, light wake category.

About the Van's Aircraft RV-4

The Van's RV-4 is a tandem two-seat homebuilt aircraft that established Van's Aircraft as the dominant force in kit aviation when it debuted in 1979. Designed by Richard VanGrunsven, the RV-4 was the first Van's model to achieve widespread success, combining aerobatic capability with cross-country efficiency in a package that amateur builders could complete in their garages. Its all-metal construction, proven Lycoming engine installations (typically 150-180 hp), and docile handling made it the template for the entire RV series that followed.

The type pioneered the concept of a "serious" homebuilt: an aircraft that could outperform many certified designs while remaining accessible to first-time builders. With a cruise speed around 180 knots and a roll rate exceeding 120 degrees per second, the RV-4 delivered fighter-like agility at a fraction of the cost. Though production plans ceased in 2003 when Van's shifted focus to the side-by-side RV-6 and later models, the RV-4 remains highly regarded in the experimental aircraft community for its honest aerobatic manners and efficient cross-country performance.

Its tandem seating and narrow fuselage give it a distinctly military aesthetic that appeals to builders seeking a sportier cockpit experience than the RV-6's side-by-side configuration offers. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
644
all time
FLOWN HOURS
374
tracked time
📍
AIRPORTS VISITED
56
unique
📡
CALLSIGNS
1
102 routes
📅
SERVICE PERIOD
05/31/2025 → 08/22/2026
first → last
INCIDENT RATE
15.8%
102 flagged

Top routes

By flight count

10
49
44
16
11
9
8
7
6
5
5

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Van's Aircraft RV-4

Engines
Single Piston
Vref (approach)
65 kt
MTOW
1,500 lb
Wake category
L

Recent flights

Newest 50 operations of N987BB

50
08/22/2026
1h 52m
No alerts
08/21/2026
41m
No alerts
08/19/2026
34m
No alerts
08/18/2026
29m
No alerts
08/18/2026
35m
No alerts
08/18/2026
37m
No alerts
08/17/2026
37m
No alerts
08/17/2026
36m
No alerts
08/16/2026
34m
No alerts
08/07/2026
1h 16m
No alerts
07/22/2026
39m
No alerts
07/21/2026
35m
△ Low approach-stability score
07/21/2026
5m
No alerts
07/21/2026
56m
No alerts
07/21/2026
24m
No alerts
07/20/2026
35m
No alerts
07/17/2026
32m
No alerts
07/17/2026
12m
No alerts
07/17/2026
13m
No alerts
07/17/2026
40m
No alerts
07/17/2026
34m
No alerts
07/17/2026
32m
No alerts
07/16/2026
34m
No alerts
07/15/2026
12m
No alerts
07/15/2026
6m
△ Low approach-stability score
07/15/2026
32m
No alerts
07/14/2026
30m
No alerts
07/11/2026
32m
No alerts
07/10/2026
37m
No alerts
07/10/2026
5m
No alerts
07/09/2026
46m
No alerts
07/09/2026
34m
No alerts
07/09/2026
36m
No alerts
07/09/2026
31m
No alerts
06/30/2026
25m
△ Low approach-stability score
06/30/2026
9m
No alerts
06/30/2026
43m
No alerts
06/22/2026
47m
△ Low approach-stability score
06/22/2026
41m
No alerts
06/19/2026
31m
No alerts
06/19/2026
33m
No alerts
06/18/2026
7m
No alerts
06/18/2026
33m
No alerts
06/18/2026
34m
No alerts
06/17/2026
35m
No alerts
06/17/2026
12m
No alerts
06/17/2026
32m
No alerts
06/17/2026
13m
△ Low approach-stability score
06/16/2026
43m
No alerts
06/16/2026
36m
No alerts
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